大约有 15,461 项符合查询结果（耗时：0.0412秒） [XML]
Selecting last element in JavaScript array [duplicate]
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I added a test case where you call .pop() and .push() consecutively. Seems to be 10x faster than .slice(-1)[0] but still 10x slower than direct access.
– mjois
Jan 5 '16 at 3:37
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How do I get the current username in Windows PowerShell?
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Works as expected. Tested for url address reservation.
– Marek Bar
Jul 6 '18 at 8:36
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What is the best way to conditionally apply attributes in AngularJS?
...roach should work for other attribute types.
(I think you need to be on latest unstable Angular to use ng-attr-, I'm currently on 1.1.4)
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Preserve line breaks in angularjs
... comparison of the different rendering modes: http://meyerweb.com/eric/css/tests/white-space.html
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Are there console commands to look at whats in the queue and to clear the queue in Sidekiq?
... out above, these examples are outdated; as mkirk pointed out below, the latest docs w/examples are on the wiki: github.com/mperham/sidekiq/wiki/API
– odigity
Aug 18 '14 at 14:59
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How to prevent ENTER keypress to submit a web form?
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function checkEnter(e){
e = e || event;
var txtArea = /textarea/i.test((e.target || e.srcElement).tagName);
return txtArea || (e.keyCode || e.which || e.charCode || 0) !== 13;
}
Now you can define a keypress handler on the form:
<form [...] onkeypress="return checkEnter(event)">
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Attempted to read or write protected memory. This is often an indication that other memory is corrup
... more than 1 server using different hardware. Turns out all the machines I tested this on were running "NVidia Network Manager". I believe it installs with the rest of the motherboard drivers.
Hopefully this helps someone as this issue was plaguing my application for a very long time.
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Creating a copy of a database in PostgreSQL [closed]
...database is under traffic, I'm simply using:
pg_dump production-db | psql test-db
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Example use of “continue” statement in Python?
... use a continue statement, we are essentially jumping out of a conditional testing section and allowing the iteration of the loop to proceed on to the next iteration? It isn't apparent to me how this would be better than using else. Is it just all about improved readability and run-time performance?...
Python Pandas: Get index of rows which column matches certain value
... If you only want back the index, what's the overhead of df[dftest].index? Does this create an intermediate data frame (whose data may be gibabytes). What about dftest? Doesn't this also allocate a very large intermediate object where the returned index may be very small, or even empty...